Porsche has announced today that the company will cut the average fuel consumption of its Cayenne sport utility vehicle by nearly a third when it rolls out a hybrid version at the end of 2009.

Current Cayenne has an average fuel consumption of 12.9 liters per 100 kilometers, or 18.5 mpg and the company wants to reduce it to 8.9 liters of petrol per 100 kilometers, or 26.8 miles per gallon.

The European Commission plans new rules by mid-2008 to reduce CO2 emissions from new passenger cars to an average 130 grams of C02 per km by 2012. The Cayenne has an emission between 320 to 378 grams per km depending on the model.

This is the reason why Porsche, Volkswagen and Audi are working to develop hybrid powertrains that capture energy from braking. A battery then drives an electric motor alongside a petrol engine. The so-called parallel-full hybrid lets the vehicle drive on electric power alone at speeds up to 120km per hour, or 74 miles per hour, with the combustion engine taking over at higher speeds.

Porsche also intends to launch hybrid versions its fourth model, the Panamera that will be launched in 2009, but they didn’t said anything about Boxster/Cayman model line or its 911 sports cars.

Source: Automotive News

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